Product Name

Melanotan II

Research Description

Melanotan II is a synthetic cyclic heptapeptide supplied for laboratory and analytical chemistry applications. This material is intended for controlled research environments where peptide identity, molecular structure, chemical composition, solubility, stability, and analytical characteristics may be evaluated using appropriate laboratory methods.

Melanotan II is typically supplied as a lyophilized powder and should be handled according to standard laboratory procedures for synthetic peptide materials. This product description is strictly chemistry-focused and intended for informational research-use positioning only.

Chemical Profile

Product Name: Melanotan II
CAS Number: 121062-08-6
Compound Type: Synthetic Research Peptide
Peptide Class: Cyclic Heptapeptide
Physical Form: Lyophilized Powder
Research Category: Peptide Chemistry / Analytical Research
Molecular Formula: C50H69N15O9
Molecular Weight: 1024.18 g/mol
Sequence Reference: Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2

Melanotan II is a synthetic cyclic peptide containing seven amino acid residues, including modified amino acid components and a constrained molecular framework. Its analytical profile may vary depending on salt form, counterion composition, residual moisture, manufacturing conditions, and batch-specific characteristics.

Structural Characteristics

Melanotan II features a cyclic heptapeptide structure stabilized by an intramolecular lactam bridge between the side chains of aspartic acid and lysine. The molecular framework incorporates N-terminal acetylation, C-terminal amidation, norleucine, and D-phenylalanine.

The compound contains multiple peptide bonds, aromatic amino acid residues, polar functional groups, and basic side-chain regions within a conformationally constrained structure.

These structural characteristics may influence chromatographic behavior, solubility, conformational properties, and analytical identification. Molecular identity, purity, salt form, and sequence confirmation should be established through appropriate analytical testing and verified against supplier documentation or a current lot-specific certificate of analysis when available.

Analytical Considerations

Melanotan II may be characterized using established analytical techniques for synthetic peptide materials, including high-performance liquid chromatography (HPLC), liquid chromatography–mass spectrometry (LC-MS), and other suitable identity and purity assessment methods.

Analytical evaluation may include molecular mass verification, chromatographic purity, structural consistency, physical appearance, and batch-to-batch comparison.

Specific purity percentages, assay values, residual solvent concentrations, water content, counterion composition, or other quality-control results should only be reported when supported by current batch-specific analytical documentation.

Handling & Storage

Melanotan II should be maintained in a sealed container under appropriate laboratory storage conditions, protected from moisture, direct light, and elevated temperatures, with long-term storage requirements determined by supplier or batch-specific stability documentation.

Research Use Disclaimer

Melanotan II is intended strictly for laboratory research and analytical applications. It is not intended for human or animal consumption, clinical use, diagnostic use, food use, supplement use, cosmetic use, household use, or any application outside controlled research environments.

Focus Keyphrase

Melanotan II Peptide

Meta Description

Melanotan II is a synthetic cyclic heptapeptide supplied as lyophilized powder for laboratory chemistry and analytical peptide research.